题目内容：
根据以下材料，回答题Thereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.NoschoolIhavetaughtinhaseverignoredspellingorconsidereditunimportantasabasicskill.Thereare,however,vastlydifferentideasabouthowtoteachit,orhowmuchpriorityitmustbegivenovergenerallanguagedevelopmentandwritingability.Theproblemis,howtoencourageachildtoexpresshimselffreelyandconfidentlyinwritingwithoutholdinghimbackwiththecomplexitiesofspelling.
Ifspellingbecomestheonlyfocalpointofhisteacher'sinterest,clearlyabrightchildwillbelikelyto"playsafe".Hewilltendtowriteonlywordswithinhisspellingrange,choosingtoavoidadventurouslanguage.That'swhyteachersoftenencouragetheearlyuseofdictionariesandpayattentiontocontentratherthantechnicalability.
Iwasonceshockedtoreadonthebottomofasensitivepieceofwritingaboutapersonalexperience:"Thisworkisterrible!Therearefartoomanyspellingerrorsandyourwritingisillegible(难以辨认的)."Itmayhavebeenasharpcriticismofthepupil'stechnicalabilitiesinwriting,butitwasalsoasadreflectionontheteacherwhohadomittedtoreadtheessay,whichcontainedsomebeautifulexpressionsofthechild'sdeepfeelings.Theteacherwasnotwrongtodrawattentiontotheerrors,butifhisprioritieshadcentredonthechild'sidea,anexpressionofhisdisappointmentwiththepresentationwouldhavegiventhepupilmoremotivationtoseekimprovement.
Teachersaredifferentintheiropinionsabout. A．thedifficultiesinteachingspelling
B．theroleofspellingingenerallanguagedevelopment
C．thecomplexitiesofthebasicwritingskills
D．thenecessityofteachingspelling
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答案解析：